Jewel-setting machine



L. E. 'GARNE TTV I JEWEL ssmuc MACHINE.

APPLICATION FILED MAY 18, 1-920.

Patented May 9, 1922.

2 SHEETS-SHEET I.

L. E. (BARNETT.

JEWEL SETTING. MACHINE. APPLICATION FILED MAY 18. 1920- 1,41 5,235.Patented y 9, 1922.

2 SHEETS-SHEET2.

III/111mm umlmm 25g llllllllll 'VIIIIIIIIIIIIIII/IIIIIIIA UNH'E STATES'PATEN'E LEMUEL E. GARNETT, OF TACOMA, WASHINGTON.

J EWEL-SETI'ING MACHINE.

Application filed May 18,

To all whom it may concern:

Be it known that I, LEMUEL E. GARNETT, a citizen of the United States,and resident of the city of Tacoma, county of Pierce, and State of\Vashington, have invented certain new and useful Improvements inJewel-Setting Machines, of which the following is a specification.

This invention relates to improvements in jewel setting machines, andmore particularly to machines of that character especially adapted tothe work required in the making or repairing of watches; the principalobject of the invention being to provide a machine which will be simpleand efiicient in its operation, durable in construction, which will berelatively inexpensive and which will, by its use,.greatly expedite thework for which it was intended.

It is also the object of the invention to provide a machine 01 the abovecharacter, comprising a lathe or chucking spindle, wherein pieces usedfor jewel mountings, or the like, may be held in position to be workedupon. and to provide a revoluble turret whereon various forms ofcutting,

luirnishing or polishing tools are mounted in positions to be moved byselective adjustment and rotation of the turret into working relationwith the pieces that'may be held in the lathe chuck.

further object of the invention resides in the provision of the severalfeatures of adjustment for properly setting and adjusting the varioustools carried by the turret.

In accomplishing these and other objects of the invention, I haveprovided the improved details of construction. the preferred forms ofwhich are illustrated in the accompanying drawings. wherein--- I Figure1 is a side view of a 'ewel setting machine constructed according to thepresent invention.

Figure 2 is a plan view of the same.

Figure 3 is transverse vertical section of the machine, taken on theline 3-3 of Figure 2, particularly illustrating the con struction of thelathe spindle, and the man ner of mounting a working tool in therevoluble turret.

Figure 4 is a fragmental plan view of the device, illustrating one ofthe stationary cutters, and mechanism for making small adiustments ofthe turret.

Figure 5 is a back side view of the turret adiusting mechanism.

Figurefi is a plan view of the stationary cutters and jewel and toolsetting gauge.

Specification of Letters Patent.

Patented May 9, 1922.

1920. Serial No, 382,367.

Figure 7 is an elevation of the table and a cutter, looking in thedirection of the arrow in Figure 6, showing the cutter adjusting screw.

Figure 8 is a detail sectional view of the turret head, showing thescrew whereby it is locked to the adjusting plate.

Referring more in detail to the drawings, wherein like referencenumeralsdesignate like parts 1 and 2, respectively, designate upper andlower, horizontally disposed, circular tables which are rigidly spacedapart by three equally spaced posts 3, and are supported at a desirableworking height by legs 4 which are fixed to the lower table and at theirends are equipped with screws 5,

whereby the device may be secured to a table or other workingfoundation.

Revolubly mounted at its opposite ends in the tables 1 and 2, is a lathespindle 6, provided at its upper end with a conically tapered shoulder.7 which seats against an opposing shoulder in a central opening 8 inthe table 1, and at its lower end has a downwardly facing, coni'callytapered shoulder 9 which seats within a conicallytapered opening in anut 10 threaded cent-rally through the table 2, and adjustable thereinto take up any wear that is incidental to use of the machine, and whichis equipped with a lock nut 11 that maybe tightened against the table toretain the adjustment.

The spindle 6 has a longitudinal bore 12 therein. wherein the shank of atubular chuck 13 is extended. At its upper end the chuck has alongitudinally split head 1 1 which seats against a. conical bore 15 atthe upper end of the spindle bore 12, and at its lower end is threadedinto a holding stem 16 that is projected into the spindle bore. with awheel or head 1'? fixed thereon, which seats against the lower end ofthe spindle 6 and which may be turned to loosen the chuck. or to draw itinwardly to contract the split head against a piece, or wire that may beextended into the chuck, to hold the same while being worked on.

Mounted on. the spindle is a grooved pulley wheel 20 over which a belt21 may be extended and driven in any suitable manner to revolve thespindle for the purpose 0t turning or cutting pieces heldby the chuck.

Extending laterally from the table 1 is bracket 22 having a verticalportion 23 and a: forwardly directed arm 24, overlying the table, andsupported on the arm 24: in

block laterally. Pivotally fixed superimposed and concentric relation,is a circular plate 25 and a turret plate 26. A bolt 2'? is extendedupwardly, through the arm, and centrally through the plate 25 and turretto support the same revolubly on the bracket; the turret, which issupported on the plate, has a boss 28 on its upper side which serves asa hub for the bolt, andv the latter extends above the boss and has a nut29 threaded thereon to hold the turret substantially in workingposition.

Mounted in the turret, at equal radial distances from the bolt, aboutwhich it revolves, are a plurality of tool carrying de vices 30, each ofwhich may, on revolvingthe turret, be brought into alinement with theaxial line of the spindle 6 to position tools carried thereby in workingrelation to pieces of metal, wire or plates that may be held by thechuck head 14;, or on the base plate 2. The tool holding devices 80comprise tubular members 31 that are fixed to extend vertically throughthe turret with their lower ends open and their upper ends closed bycaps 32. Within the tubular members 31 are blocks 33, each provided witha threaded stem 34; that extends upwardly through an opening in the tubecap and at their upper ends have heads 35 thereon whereby the stems maybe lifted to move the block upwardly against the pressure of spring 36located within the tubes and hearing against the caps and block. 1

Each block 33 has a tapered tool socket 38 in its lower end forreceiving a tool, such as the cutter 39, the burnisher 40, polisher 4L1,or other desirable tools.

Threaded onto the stems between tr e caps 32 and heads 35 are nuts l3,which may be adjusted to limit the downward movement of the tools to acertain distance. These nuts, as is shown in Figure 3, are. graduated indegree marks, which may be observed when adjustment is made and willserve to facilitate re-setting or adjustment.

Extending downwardly from the rear edge of the plate 25 is an arml5having laterally turned end 46,. as shown in Figures 1 and 1, andfixed beneath the bracket an arm 4'? which extends rearwardly beneath.the arm t5, and at its outer end an upturned, bifurcated portion 18,wherein a block 49 is transversely adjustable; the block being slidableon a cross rod 50 and threaded onto an adjusting screw 51, which may beturned by a head 52 to adjust the by a pin. 53 to the underside of theblock 4-9, is a head 54:, and slidable therein is a pin which at itsinner end is threaded into the out-turned end 46 of the arm 45.

Threaded downwardly through. the turret plate 26 is a thumb screw 56,having a tapered inner end 47 which is adapted to seat in any one of aplurality of tapered sockets 70, that" are threaded After a desiredadjustment of the block l9 has once been made, it can be locked by setscrews and 61, that are threaded inwardly from opposite sides of thebifurcated end of the arm 47.

Mounted on the table, or plate 1, is a gauge bar 60, which is pivoted atits inner end to the table by a pivot pin 61, and at its opposite end isadapted to move toward or from a stop block 62 fixed on the forward edgeof the table. The bar has a raisedicentral portion 63, which permits itto overlie and move freely across plates, or pieces, that may be fixedon the table, as is shown in Figure 6, and at its movable end hasaslotted, laterally extending arm 64, through which, a set screw 65 isthreaded into the edge of the table to hold the bar at any adjusted orset position.

In this construction, the distance from the pivot pin 61 to the centerof the spindle chuck is equal to the distance from the chuck to the stopblock, and when the swinging end of the bar is engaged with the block,its inner ed designated by numeral 66 bisects the axial line of thespindle, for a purpose presently described.

Mouuted within openings 67, cut in the table-2, are frames 68, pivotallymounted at one edge, as by the pins 69, and adjustable vertically attheir opposite edges by screws through brackets 71 fixed to the underside of the table. Slidable longitudinally within these frames to-- wardand from the spindle,.are cutter 'bars 72, which are adjusted by meansof screws 73 fixed revolubly in the frames and threaded into blocks 74that are fixed to the cutter bars: The inner ends of these cutter barsmay be designed for various forms of cutting and are adjustedhorizontally and laterally by manipulation of the screws 7 0 and 73 toact on pieces that maybe mounted in the lathe chuck.

Assuming that the device is so constructed, in using the same forforming a jewel mounting from a piece of wire or thelike, the latter isextended into the chuck and clamped therein with its upper end disposedin position to be operated upon by a drill or other tool carried by theturret. To properly gauge the diameter of opening for any special sizeof jewelto be mounted, the

jewel is placed between the stop block and end of the gauging bar, andthe cutter is adjusted, as is shown in Figure 3, against its inner edge.

Since the distance from the pivot pin 71 to the tool is one half thedistance to the position where the jewel is placed, it is apparent thatsuch adjustment of the cutter will provide for cutting or reaming out amounting that will be of the same diameter of the jewel and the lattercan be easily set therein.

After a jewel hasbeen set in the mounting thus provided, other tools arebrought into working relation by turning the turret and the jewel can beburnished, polished and made ready for use without removal from themachine.

The cutters mounted in the table 2 can be adjusted as desired to cutoff, or trim pieces held in the lathe, or accomplish other work incidentto jewel setting operations.

Having thus described my invention, what I claim as new and desire toprotect by Letters Patent, is:

1. A jewel setting device of the character described comprising asupporting base, a lathe spindle operatively mounted in the said base, awork holding chuck applicable to the said spindle, a bracket fixed toand extending from the base, a turret adjusting arm mounted pivotallyupon the bracket, a turret supported by the bracket upon said arm, aplurality of tools of different character operatively mounted on thesaid turret and adapted to be individually positioned by revolving thelatter in working relation with pieces that may be held in the lathechuck, means for securing the turret relative to the arm to retain aselected tool in working position and means for adjusting the arm toeffect a finer adjustment of the tool toward or from the work beingdone,

2. A jewel setting device of the character described comprising asupporting base, a lathe spindle operatively mounted in said base, awork holding chuck applicable to the said spindle, a bracket fixed toand extending from the base, a turret adjusting arm pivotally fixed uponthe bracket, a tool turret revolubly fixed on. the arm, a plurality oftools of different character adjustably mounted on the turret to bemoved individually, by revolving the turret, into working relation topieces that may be held in the chuck, a locking screw for securing theturret relative to the arm to retain a selected tool in workingposition, a screw operable to adjust the arm to effect a fineradjustment of the turret to move the working tool transversely to theline of the spindle and means for adjusting the tools longitudinallytoward or from the piece being worked upon 3. jewel setting device ofthe character described comprising a supporting base, a lathe spindleoperatively mounted and supported vertically in said base, a workholding chuck applicable to the spindle, a bracket member fixed to thesaid base and having a piece extending above and parallel with the baseplate, a pivot pin fixed in said bracket, a turret adjusting platerevolubly mounted on said pin, a turret supported on said adjustingplate and revoluble about said pin, tools of different character fixedin said turret plate and adapted to be individually positioned byrevolvingthe latter in working relation to pieces that may be held bythe chuck, means for locking the turret at any adjusted position on theadjusting plate to place a selected tool approximately near its workingposition. and mechanism supported from the base member for moving theadjusting plate to effect a liner adjustment of the tool with respect tothe piece being worked upon.

l. In a device of the character described, in combination, a horizontalbase plate, a lathe spindle operatively mounted insaid plate, a turretplate operatively mounted to revolve in a plane parallel to and abovethe plane of the base plate, a plurality of tools fixed in said turretplate at equal radial distances from its axial line and individuallymovable into the axial line of the spindle and a tool gauging barpivotally fixed at one end to the base plate and movable at its oppositeend along a graduated scale on the base plate and engagable between itsends by a tool of the turret when the said tool is moved into workingalinement with the spindle.

5. In a device of the character described, in combination, a horizontalbase plate, a lathe spindle. having its upper end revolubly fixed insaid base plate, a turret plate mounted to revolve in a plane parallelto and above the base plate, a plurality of tools mounted in said turretto be moved individually into the axial line of the spindle. a toolgauging bar pivotally mounted on the base plate in the plane of theaxial lines of the turret and spindle and movable at its opposite endalong a graduated scale on the base, said bar having an upwardly offsetcentral portion adapted to overlie pieces held in the lathe spindle andto be engaged by tools moved into working relation to said pieces, forthe purpose set forth.

6, A combination as set forth in claim 5 wherein the distance from topivot point of the gauge bar to the circular line of travel of thevarious tools is equal to one-half the distance from the pivot point. tothe line of the graduated scale, for the purpose set forth.

Signed at Tacoma, Washington, this 11th day of May, 1920.

LEMUEL E. GARNET T.

